General Ferrisurite Information Chemical Formula: |
(Pb,Cu)2-3(CO3)1.5-2(OH,F)0.5-1[(Fe,Al)2Si4O10(OH)2]•n(H2O) |
Composition: |
Molecular Weight = 914.93 gm |
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Sodium 0.25 % Na 0.34 % Na2O |
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Aluminum 1.77 % Al 3.34 % Al2O3 |
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Iron 7.94 % Fe 0.79 % FeO / 10.47 % Fe2O3 |
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Copper 4.17 % Cu 4.69 % Cu2O |
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Silicon 12.28 % Si 26.27 % SiO2 |
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Hydrogen 0.39 % H 3.45 % H2O |
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Lead 38.50 % Pb 41.47 % PbO |
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Carbon 2.23 % C 8.18 % CO2 |
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Oxygen 31.65 % O |
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Fluorine 0.83 % F 0.83 % F |
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- %
F -0.35 % -O=F2 |
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______ ______ |
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100.00 % 99.48 % = TOTAL OXIDE |
Empirical Formula: |
Pb1.7Cu0.6Na0.1(CO3)1.7(OH)0.5F0.4Fe3+1.2Al0.6Fe2+0.1Si4O10(OH)2·0.5(H2O) |
Environment: |
Oxidize lead deposit in contact metamorphosed and faulted shaly limestone. |
IMA Status: |
Approved IMA 1992 |
Locality: |
Shirley Ann claim, Ubehebe district, Inyo County, California, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named for its composition and relationship to surite. |
Name Pronunciation: |
Ferrisurite + Pronunciation |
Synonym: |
IMA1990-056 |
| | Ferrisurite Image
Images:
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Ferrisurite Crystallography Axial Ratios: |
a:b:c =0.5774:1:1.7882 |
Cell Dimensions: |
a = 5.241, b = 9.076, c = 16.23, Z = 2; beta = 90.03° V = 772.02 Den(Calc)= 3.94 |
Crystal System: |
MonoclinicSpace Group: P 21 or P 21/m |
X Ray Diffraction: |
By Intensity(I/Io): 4.53(1), 3.24(0.9), 2.612(0.8),2.272(0.5), 16.1(0.4), 3.727(0.35), 1.715(0.25), 5.4(0.25), |
| Physical Properties of Ferrisurite Cleavage: |
{???} Perfect |
Color: |
Forest green, Yellow green, Olive green. |
Density: |
4 |
Diaphaneity: |
Transparent |
Habit: |
Fibrous - Crystals made up of fibers. |
Hardness: |
2-2.5 - Gypsum-Finger Nail |
Luminescence: |
Non-fluorescent. |
Luster: |
Silky |
Streak: |
greenish yellow |
| Optical Properties of Ferrisurite Gladstone-Dale: |
CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.01 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.194,KPDmeas= 0.1911,KC= 0.1922 Ncalc = 1.76 - 1.77 Optical Data: |
Biaxial (+), a=1.757, b=1.763, g=1.773, bire=0.0160, 2V(Calc)=76, 2V(Meas)=76. |
Pleochroism (x): |
yellow. |
Pleochroism (y): |
brown. |
Pleochroism (z): |
light green. |
| Calculated Properties of Ferrisurite Electron Density: |
Bulk Density (Electron Density)=3.65 gm/cc |
note: Specific Gravity of Ferrisurite =4.00 gm/cc. Fermion Index: |
Fermion Index = 0.09 |
Boson Index = 0.91 Photoelectric: |
PEFerrisurite = 652.49 barns/electron |
U=PEFerrisurite x rElectron Density=2,382.51 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ferrisurite is Not Radioactive | Ferrisurite Classification Dana Class: |
71.02.04.01 (71)Phyllosilicate Sheets of Six-Membered Rings |
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(71.02)with 2:1 Layers |
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(71.02.04)Surite group |
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Strunz Class: |
09.EC.75 09 - SILICATES (Germanates) |
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09.E - Phyllosilicates |
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09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets |
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| Other Ferrisurite Information References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Ferrisurite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Ferrisurite using: Visit our Advertisers for Ferrisurite : A Bijoux Google Search for FerrisuriteAdam's Minerals Google Search for Ferrisurite Cape Minerals Google Search for Ferrisurite Dakota Matrix Minerals Google Search for Ferrisurite Excalibur Mineral Corp. Google Search for Ferrisurite Exceptional Minerals Google Search for Ferrisurite John Betts Fine Minerals Search for Ferrisurite McDougall Minerals Google Search for Ferrisurite Mineral News Website Link Rock and Mineral Shows Google Search for Ferrisurite Weinrich Minerals, Inc. Google Search for Ferrisurite Ask about Ferrisurite here : Print or Cut-and-Paste your Ferrisurite Specimen Label here :
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